Shorten peppers Labor caucus with zingers

"Malcolm Turnbull must have been thinking about turning his plane around last night."

"In the coalition, you get a conscience vote on shotguns but not on marriage equality." - On National senators crossing the floor, and others abstaining from voting, on a disallowance motion about controversial shotguns.

"And of course, Satin George (Brandis) gave us another pearl - he's the gift that keeps on giving. I always thought he put that persona on for the cameras. It turns out he's just as hopeless when he doesn't know the microphone is on." - On the attorney-general's comments about the state of play in Queensland state politics.

"Fancy George Brandis calling anyone very mediocre. That would be like Barnaby Joyce saying you are hard to understand or Paul Fletcher saying you are dull."